"""Arlington, VA - September 11, 2008 -- Joint service troops unveil the Pentagon Memorial Sept. 11, 2008, as the United States Air Force Band plays """"Who Are the Brave."""" The national memorial is the first to be dedicated to those killed at the Pentagon on Sept. 11, 2001. The site contains 184 inscribed memorial units honoring the 59 people aboard American Airlines Flight 77 and the 125 in the building who lost their lives that day..Credit: Jennifer Villalovos - DoD via CNP"""
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